The flow path of a container valve communicates from a container attachment portion, to be attached to a fluid storage container, to an outlet, and is provided with a valve chamber, accommodating an open/close valve, in a middle part thereof. A portion of the flow path from an end of the container attachment portion to a bottom surface of the valve chamber is set as a primary flow path, and a portion of the flow path from an inner side surface of the valve chamber to an end of the outlet is set as a secondary flow path. In an outer circumferential portion of the bottom surface of the valve chamber, a discharge promotion groove is formed continuously with a portion corresponding to the lateral opening in a circumferential direction. A bottom surface of the secondary flow path is located below a bottom surface of the discharge promotion groove.

Disclosed are can taps for dispensing fluids from containers. The can tap has a housing with an inlet and an outlet, and a pin. The pin has a flow portion in fluidic communication with the inlet and the outlet of the housing. The pin may have a blunt depressor capable of operating a valve on the container. The flow portion of the pin allows fluid to flow between the housing and the pin. The can tap may have a gasket comprising a material having a hardness that prevents deformation of the container.

Disclosed are can taps for dispensing fluids from containers. The can tap has a housing with an inlet and an outlet, and a pin. The pin has a flow portion in fluidic communication with the inlet and the outlet of the housing. The pin may have a blunt depressor capable of operating a valve on the container. The flow portion of the pin allows fluid to flow between the housing and the pin. The can tap may have a gasket comprising a material having a hardness that prevents deformation of the container.

A valve comprises a body that includes a first channel connected to the gas tank and a second channel connected to a circuit, with the first and second channels communicating with a central housing. The valve comprises a closure member movable between a closed position of the first channel and a supply position in which the first and second channels communicate. A third channel is formed in the body and communicates with the central housing The closure member is configured to isolate the third channel from the first and second channels in the closure and supply positions, and to allow communication between the third channel and the first and second channels in a discharge position.

A valve comprises a body that includes a first channel connected to the gas tank and a second channel connected to a circuit, with the first and second channels communicating with a central housing. The valve comprises a closure member movable between a closed position of the first channel and a supply position in which the first and second channels communicate. A third channel is formed in the body and communicates with the central housing The closure member is configured to isolate the third channel from the first and second channels in the closure and supply positions, and to allow communication between the third channel and the first and second channels in a discharge position.

An electric valve and manufacturing method therefor, the electric valve including a valve body part, a valve seat part, a transmission part and a valve core part, wherein the valve core part includes a valve core body and a lower stop part; the valve core body is essentially tubular, and the valve core body is of an integrated structure and includes an annular thin wall portion; the lower stop part is arranged in an inner cavity of the valve core body, and the lower stop part comprises a lower stop portion; an upper cavity is present above the lower stop portion, a lower cavity is present below the lower stop portion, and the lower stop part includes a first axial through hole which is in communication with the upper cavity and the lower cavity.

Valve stem packing assemblies may include at least one end ring and at least one sealing ring. The at least one end ring may include an inner ring and an outer ring. Valves include a valve body, a valve stem, and a valve stem packing assembly.

The invention relates to a valve comprising a tubular body in which a valve stem moves axially, the head of the stem cooperating with a corresponding seat on the valve body, said stem acting against a coiled spring that is housed in a chamber of circular cross-section and disposed between a bearing zone at a first end of the chamber and the stem in order to return the stem to the seat, said spring comprising: a first end with a large turn of a diameter substantially identical to a diameter of the chamber at the first end; and a second end with a small turn connected to the shank or the head of the stem and a second large turn for centering and radial stabilization in the chamber.

The invention relates to a valve comprising a tubular body in which a valve stem moves axially, the head of the stem cooperating with a corresponding seat on the valve body, said stem acting against a coiled spring that is housed in a chamber of circular cross-section and disposed between a bearing zone at a first end of the chamber and the stem in order to return the stem to the seat, said spring comprising: a first end with a large turn of a diameter substantially identical to a diameter of the chamber at the first end; and a second end with a small turn connected to the shank or the head of the stem and a second large turn for centering and radial stabilization in the chamber.

A system including a valve, including a valve body having an interior volume and a bore along a first axis, a stem extending along a second axis, and a flow control element coupled to the stem, wherein the stem is configured to selectively move the flow control element through the interior volume between a closed position and an open position relative to the bore, and a valve insert system configured reduce a size of the interior volume and to guide a lubricant to reduce wear on the flow control element.